<!DOCTYPE html>

<style>
div {
  width: 200px;
  height: 200px;
  border: 1px solid grey;
  border-radius: 50%;
  display: inline-block;
  margin: 20px;
}

.conic1 {
  background: conic-gradient(#f06, gold);
}

.conic2 {
  background: conic-gradient(#eee .1turn, black, #eee 326deg);
}

.conic3 {
  background: conic-gradient(red, yellow, lime, aqua, blue, magenta, red);
}

.conic4 {
  background: conic-gradient(yellowgreen 40%, gold 0, gold 70%, #f06 0);
}

.conic5 {
  background: conic-gradient(black 25%, white 0, white 50%, black 0, black 75%, white 0);
  background-size: 4em 4em;
}

.conic6 {
  background: 
    conic-gradient(transparent 0%, transparent 10%, yellow 25%, transparent 40%, transparent 60%, yellow 75%, transparent 90%),
    conic-gradient(white 0%, white 50%, black 50%);
}

</style>

<div class="conic1"></div>
<div class="conic2"></div>
<div class="conic3"></div>
<br>
<div class="conic4"></div>
<div class="conic5"></div>
<div class="conic6"></div>
